2026-09-07T20:25:12.816539Z  INFO retained operator-plan finalist finalist=0 values=117 operations=80 estimated_cycles=686634 estimated_exchange_cycles=197200 exchange_row_bytes=36248 peak_standard_bytes=149296 peak_interleaved_bytes=50688 peak_total_bytes=199984 maximum_standard_allocation_bytes=81920 active_tile_counts={1, 4, 9, 18, 45, 54, 64} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(3)), Some(OperationId(4)), Some(OperationId(5)), Some(OperationId(6)), Some(OperationId(7)), Some(OperationId(8)), Some(OperationId(9)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(15)), Some(OperationId(16)), Some(OperationId(18)), Some(OperationId(19)), Some(OperationId(20)), Some(OperationId(22)), Some(OperationId(23)), Some(OperationId(25)), Some(OperationId(27)), Some(OperationId(28)), Some(OperationId(29)), Some(OperationId(30)), Some(OperationId(31)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(37)), Some(OperationId(38)), Some(OperationId(39)), Some(OperationId(40)), Some(OperationId(41)), Some(OperationId(43)), Some(OperationId(44))]
2026-09-07T20:25:12.817231Z  INFO retained operator-plan finalist finalist=1 values=117 operations=80 estimated_cycles=686698 estimated_exchange_cycles=203240 exchange_row_bytes=37476 peak_standard_bytes=101372 peak_interleaved_bytes=47616 peak_total_bytes=148988 maximum_standard_allocation_bytes=32768 active_tile_counts={1, 4, 9, 18, 45, 54, 64} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(3)), Some(OperationId(4)), Some(OperationId(5)), Some(OperationId(6)), Some(OperationId(7)), Some(OperationId(8)), Some(OperationId(9)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(15)), Some(OperationId(16)), Some(OperationId(18)), Some(OperationId(19)), Some(OperationId(20)), Some(OperationId(22)), Some(OperationId(23)), Some(OperationId(25)), Some(OperationId(27)), Some(OperationId(28)), Some(OperationId(29)), Some(OperationId(30)), Some(OperationId(31)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(37)), Some(OperationId(38)), Some(OperationId(39)), Some(OperationId(40)), Some(OperationId(41)), Some(OperationId(43)), Some(OperationId(44))]
2026-09-07T20:25:12.817850Z  INFO retained operator-plan finalist finalist=2 values=117 operations=80 estimated_cycles=687870 estimated_exchange_cycles=197160 exchange_row_bytes=36108 peak_standard_bytes=154276 peak_interleaved_bytes=49152 peak_total_bytes=203428 maximum_standard_allocation_bytes=81920 active_tile_counts={1, 4, 9, 18, 32, 45, 54, 64} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(3)), Some(OperationId(4)), Some(OperationId(5)), Some(OperationId(6)), Some(OperationId(7)), Some(OperationId(8)), Some(OperationId(9)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(15)), Some(OperationId(16)), Some(OperationId(18)), Some(OperationId(19)), Some(OperationId(20)), Some(OperationId(22)), Some(OperationId(23)), Some(OperationId(25)), Some(OperationId(27)), Some(OperationId(28)), Some(OperationId(29)), Some(OperationId(30)), Some(OperationId(31)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(37)), Some(OperationId(38)), Some(OperationId(39)), Some(OperationId(40)), Some(OperationId(41)), Some(OperationId(43)), Some(OperationId(44))]
2026-09-07T20:25:12.818483Z  INFO retained operator-plan finalist finalist=3 values=117 operations=80 estimated_cycles=687934 estimated_exchange_cycles=203200 exchange_row_bytes=37336 peak_standard_bytes=106352 peak_interleaved_bytes=46080 peak_total_bytes=152432 maximum_standard_allocation_bytes=32768 active_tile_counts={1, 4, 9, 18, 32, 45, 54, 64} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(3)), Some(OperationId(4)), Some(OperationId(5)), Some(OperationId(6)), Some(OperationId(7)), Some(OperationId(8)), Some(OperationId(9)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(15)), Some(OperationId(16)), Some(OperationId(18)), Some(OperationId(19)), Some(OperationId(20)), Some(OperationId(22)), Some(OperationId(23)), Some(OperationId(25)), Some(OperationId(27)), Some(OperationId(28)), Some(OperationId(29)), Some(OperationId(30)), Some(OperationId(31)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(37)), Some(OperationId(38)), Some(OperationId(39)), Some(OperationId(40)), Some(OperationId(41)), Some(OperationId(43)), Some(OperationId(44))]
2026-09-07T20:25:13.231806Z  INFO retained operator-plan finalist finalist=0 values=117 operations=80 estimated_cycles=686634 estimated_exchange_cycles=197200 exchange_row_bytes=36248 peak_standard_bytes=149296 peak_interleaved_bytes=50688 peak_total_bytes=199984 maximum_standard_allocation_bytes=81920 active_tile_counts={1, 4, 9, 18, 45, 54, 64} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(3)), Some(OperationId(4)), Some(OperationId(5)), Some(OperationId(6)), Some(OperationId(7)), Some(OperationId(8)), Some(OperationId(9)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(15)), Some(OperationId(16)), Some(OperationId(18)), Some(OperationId(19)), Some(OperationId(20)), Some(OperationId(22)), Some(OperationId(23)), Some(OperationId(25)), Some(OperationId(27)), Some(OperationId(28)), Some(OperationId(29)), Some(OperationId(30)), Some(OperationId(31)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(37)), Some(OperationId(38)), Some(OperationId(39)), Some(OperationId(40)), Some(OperationId(41)), Some(OperationId(43)), Some(OperationId(44))]
2026-09-07T20:25:13.232499Z  INFO retained operator-plan finalist finalist=1 values=117 operations=80 estimated_cycles=686698 estimated_exchange_cycles=203240 exchange_row_bytes=37476 peak_standard_bytes=101372 peak_interleaved_bytes=47616 peak_total_bytes=148988 maximum_standard_allocation_bytes=32768 active_tile_counts={1, 4, 9, 18, 45, 54, 64} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(3)), Some(OperationId(4)), Some(OperationId(5)), Some(OperationId(6)), Some(OperationId(7)), Some(OperationId(8)), Some(OperationId(9)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(15)), Some(OperationId(16)), Some(OperationId(18)), Some(OperationId(19)), Some(OperationId(20)), Some(OperationId(22)), Some(OperationId(23)), Some(OperationId(25)), Some(OperationId(27)), Some(OperationId(28)), Some(OperationId(29)), Some(OperationId(30)), Some(OperationId(31)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(37)), Some(OperationId(38)), Some(OperationId(39)), Some(OperationId(40)), Some(OperationId(41)), Some(OperationId(43)), Some(OperationId(44))]
2026-09-07T20:25:13.233114Z  INFO retained operator-plan finalist finalist=2 values=117 operations=80 estimated_cycles=687870 estimated_exchange_cycles=197160 exchange_row_bytes=36108 peak_standard_bytes=154276 peak_interleaved_bytes=49152 peak_total_bytes=203428 maximum_standard_allocation_bytes=81920 active_tile_counts={1, 4, 9, 18, 32, 45, 54, 64} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(3)), Some(OperationId(4)), Some(OperationId(5)), Some(OperationId(6)), Some(OperationId(7)), Some(OperationId(8)), Some(OperationId(9)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(15)), Some(OperationId(16)), Some(OperationId(18)), Some(OperationId(19)), Some(OperationId(20)), Some(OperationId(22)), Some(OperationId(23)), Some(OperationId(25)), Some(OperationId(27)), Some(OperationId(28)), Some(OperationId(29)), Some(OperationId(30)), Some(OperationId(31)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(37)), Some(OperationId(38)), Some(OperationId(39)), Some(OperationId(40)), Some(OperationId(41)), Some(OperationId(43)), Some(OperationId(44))]
2026-09-07T20:25:13.233732Z  INFO retained operator-plan finalist finalist=3 values=117 operations=80 estimated_cycles=687934 estimated_exchange_cycles=203200 exchange_row_bytes=37336 peak_standard_bytes=106352 peak_interleaved_bytes=46080 peak_total_bytes=152432 maximum_standard_allocation_bytes=32768 active_tile_counts={1, 4, 9, 18, 32, 45, 54, 64} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(3)), Some(OperationId(4)), Some(OperationId(5)), Some(OperationId(6)), Some(OperationId(7)), Some(OperationId(8)), Some(OperationId(9)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(15)), Some(OperationId(16)), Some(OperationId(18)), Some(OperationId(19)), Some(OperationId(20)), Some(OperationId(22)), Some(OperationId(23)), Some(OperationId(25)), Some(OperationId(27)), Some(OperationId(28)), Some(OperationId(29)), Some(OperationId(30)), Some(OperationId(31)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(37)), Some(OperationId(38)), Some(OperationId(39)), Some(OperationId(40)), Some(OperationId(41)), Some(OperationId(43)), Some(OperationId(44))]
2026-09-07T20:25:13.482769Z  INFO retained operator-plan finalist finalist=0 values=117 operations=80 estimated_cycles=686634 estimated_exchange_cycles=197200 exchange_row_bytes=36248 peak_standard_bytes=149296 peak_interleaved_bytes=50688 peak_total_bytes=199984 maximum_standard_allocation_bytes=81920 active_tile_counts={1, 4, 9, 18, 45, 54, 64} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(3)), Some(OperationId(4)), Some(OperationId(5)), Some(OperationId(6)), Some(OperationId(7)), Some(OperationId(8)), Some(OperationId(9)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(15)), Some(OperationId(16)), Some(OperationId(18)), Some(OperationId(19)), Some(OperationId(20)), Some(OperationId(22)), Some(OperationId(23)), Some(OperationId(25)), Some(OperationId(27)), Some(OperationId(28)), Some(OperationId(29)), Some(OperationId(30)), Some(OperationId(31)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(37)), Some(OperationId(38)), Some(OperationId(39)), Some(OperationId(40)), Some(OperationId(41)), Some(OperationId(43)), Some(OperationId(44))]
2026-09-07T20:25:13.483454Z  INFO retained operator-plan finalist finalist=1 values=117 operations=80 estimated_cycles=686698 estimated_exchange_cycles=203240 exchange_row_bytes=37476 peak_standard_bytes=101372 peak_interleaved_bytes=47616 peak_total_bytes=148988 maximum_standard_allocation_bytes=32768 active_tile_counts={1, 4, 9, 18, 45, 54, 64} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(3)), Some(OperationId(4)), Some(OperationId(5)), Some(OperationId(6)), Some(OperationId(7)), Some(OperationId(8)), Some(OperationId(9)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(15)), Some(OperationId(16)), Some(OperationId(18)), Some(OperationId(19)), Some(OperationId(20)), Some(OperationId(22)), Some(OperationId(23)), Some(OperationId(25)), Some(OperationId(27)), Some(OperationId(28)), Some(OperationId(29)), Some(OperationId(30)), Some(OperationId(31)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(37)), Some(OperationId(38)), Some(OperationId(39)), Some(OperationId(40)), Some(OperationId(41)), Some(OperationId(43)), Some(OperationId(44))]
2026-09-07T20:25:13.484070Z  INFO retained operator-plan finalist finalist=2 values=117 operations=80 estimated_cycles=687870 estimated_exchange_cycles=197160 exchange_row_bytes=36108 peak_standard_bytes=154276 peak_interleaved_bytes=49152 peak_total_bytes=203428 maximum_standard_allocation_bytes=81920 active_tile_counts={1, 4, 9, 18, 32, 45, 54, 64} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(3)), Some(OperationId(4)), Some(OperationId(5)), Some(OperationId(6)), Some(OperationId(7)), Some(OperationId(8)), Some(OperationId(9)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(15)), Some(OperationId(16)), Some(OperationId(18)), Some(OperationId(19)), Some(OperationId(20)), Some(OperationId(22)), Some(OperationId(23)), Some(OperationId(25)), Some(OperationId(27)), Some(OperationId(28)), Some(OperationId(29)), Some(OperationId(30)), Some(OperationId(31)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(37)), Some(OperationId(38)), Some(OperationId(39)), Some(OperationId(40)), Some(OperationId(41)), Some(OperationId(43)), Some(OperationId(44))]
2026-09-07T20:25:13.484702Z  INFO retained operator-plan finalist finalist=3 values=117 operations=80 estimated_cycles=687934 estimated_exchange_cycles=203200 exchange_row_bytes=37336 peak_standard_bytes=106352 peak_interleaved_bytes=46080 peak_total_bytes=152432 maximum_standard_allocation_bytes=32768 active_tile_counts={1, 4, 9, 18, 32, 45, 54, 64} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(3)), Some(OperationId(4)), Some(OperationId(5)), Some(OperationId(6)), Some(OperationId(7)), Some(OperationId(8)), Some(OperationId(9)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(15)), Some(OperationId(16)), Some(OperationId(18)), Some(OperationId(19)), Some(OperationId(20)), Some(OperationId(22)), Some(OperationId(23)), Some(OperationId(25)), Some(OperationId(27)), Some(OperationId(28)), Some(OperationId(29)), Some(OperationId(30)), Some(OperationId(31)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(37)), Some(OperationId(38)), Some(OperationId(39)), Some(OperationId(40)), Some(OperationId(41)), Some(OperationId(43)), Some(OperationId(44))]
2026-09-07T20:25:13.756039Z  INFO retained operator-plan finalist finalist=0 values=117 operations=80 estimated_cycles=686634 estimated_exchange_cycles=197200 exchange_row_bytes=36248 peak_standard_bytes=149296 peak_interleaved_bytes=50688 peak_total_bytes=199984 maximum_standard_allocation_bytes=81920 active_tile_counts={1, 4, 9, 18, 45, 54, 64} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(3)), Some(OperationId(4)), Some(OperationId(5)), Some(OperationId(6)), Some(OperationId(7)), Some(OperationId(8)), Some(OperationId(9)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(15)), Some(OperationId(16)), Some(OperationId(18)), Some(OperationId(19)), Some(OperationId(20)), Some(OperationId(22)), Some(OperationId(23)), Some(OperationId(25)), Some(OperationId(27)), Some(OperationId(28)), Some(OperationId(29)), Some(OperationId(30)), Some(OperationId(31)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(37)), Some(OperationId(38)), Some(OperationId(39)), Some(OperationId(40)), Some(OperationId(41)), Some(OperationId(43)), Some(OperationId(44))]
2026-09-07T20:25:13.756712Z  INFO retained operator-plan finalist finalist=1 values=117 operations=80 estimated_cycles=686698 estimated_exchange_cycles=203240 exchange_row_bytes=37476 peak_standard_bytes=101372 peak_interleaved_bytes=47616 peak_total_bytes=148988 maximum_standard_allocation_bytes=32768 active_tile_counts={1, 4, 9, 18, 45, 54, 64} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(3)), Some(OperationId(4)), Some(OperationId(5)), Some(OperationId(6)), Some(OperationId(7)), Some(OperationId(8)), Some(OperationId(9)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(15)), Some(OperationId(16)), Some(OperationId(18)), Some(OperationId(19)), Some(OperationId(20)), Some(OperationId(22)), Some(OperationId(23)), Some(OperationId(25)), Some(OperationId(27)), Some(OperationId(28)), Some(OperationId(29)), Some(OperationId(30)), Some(OperationId(31)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(37)), Some(OperationId(38)), Some(OperationId(39)), Some(OperationId(40)), Some(OperationId(41)), Some(OperationId(43)), Some(OperationId(44))]
2026-09-07T20:25:13.757340Z  INFO retained operator-plan finalist finalist=2 values=117 operations=80 estimated_cycles=687870 estimated_exchange_cycles=197160 exchange_row_bytes=36108 peak_standard_bytes=154276 peak_interleaved_bytes=49152 peak_total_bytes=203428 maximum_standard_allocation_bytes=81920 active_tile_counts={1, 4, 9, 18, 32, 45, 54, 64} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(3)), Some(OperationId(4)), Some(OperationId(5)), Some(OperationId(6)), Some(OperationId(7)), Some(OperationId(8)), Some(OperationId(9)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(15)), Some(OperationId(16)), Some(OperationId(18)), Some(OperationId(19)), Some(OperationId(20)), Some(OperationId(22)), Some(OperationId(23)), Some(OperationId(25)), Some(OperationId(27)), Some(OperationId(28)), Some(OperationId(29)), Some(OperationId(30)), Some(OperationId(31)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(37)), Some(OperationId(38)), Some(OperationId(39)), Some(OperationId(40)), Some(OperationId(41)), Some(OperationId(43)), Some(OperationId(44))]
2026-09-07T20:25:13.757949Z  INFO retained operator-plan finalist finalist=3 values=117 operations=80 estimated_cycles=687934 estimated_exchange_cycles=203200 exchange_row_bytes=37336 peak_standard_bytes=106352 peak_interleaved_bytes=46080 peak_total_bytes=152432 maximum_standard_allocation_bytes=32768 active_tile_counts={1, 4, 9, 18, 32, 45, 54, 64} padding_group_counts={} conversion_sources=[Some(OperationId(1)), Some(OperationId(3)), Some(OperationId(4)), Some(OperationId(5)), Some(OperationId(6)), Some(OperationId(7)), Some(OperationId(8)), Some(OperationId(9)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(13)), Some(OperationId(15)), Some(OperationId(16)), Some(OperationId(18)), Some(OperationId(19)), Some(OperationId(20)), Some(OperationId(22)), Some(OperationId(23)), Some(OperationId(25)), Some(OperationId(27)), Some(OperationId(28)), Some(OperationId(29)), Some(OperationId(30)), Some(OperationId(31)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(35)), Some(OperationId(37)), Some(OperationId(38)), Some(OperationId(39)), Some(OperationId(40)), Some(OperationId(41)), Some(OperationId(43)), Some(OperationId(44))]
2026-09-07T20:25:13.785859Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="lower_mid"}: package build phase finished phase="lower_mid" elapsed_ms=16504 success=true
2026-09-07T20:25:13.914710Z  INFO screened tile mappings by exchange resource load candidates=29 baseline_cycles=74478 candidate_cycles=74478 baseline_pressure=44956 candidate_pressure=44956
2026-09-07T20:25:13.915066Z  INFO modelled expanded operator plan finalist=2 modelled_cycles=684307 estimated_cycles=3033113 estimated_exchange_cycles=2460484
2026-09-07T20:25:13.991664Z  INFO screened tile mappings by exchange resource load candidates=22 baseline_cycles=73394 candidate_cycles=73394 baseline_pressure=46125 candidate_pressure=46125
2026-09-07T20:25:13.992273Z  INFO modelled expanded operator plan finalist=0 modelled_cycles=671825 estimated_cycles=3113115 estimated_exchange_cycles=2553084
2026-09-07T20:25:14.003452Z  INFO screened tile mappings by exchange resource load candidates=22 baseline_cycles=76992 candidate_cycles=76608 baseline_pressure=48098 candidate_pressure=47714
2026-09-07T20:25:14.004505Z  INFO modelled expanded operator plan finalist=1 modelled_cycles=669045 estimated_cycles=3102033 estimated_exchange_cycles=2549796
2026-09-07T20:25:14.042189Z  INFO screened tile mappings by exchange resource load candidates=29 baseline_cycles=78048 candidate_cycles=78048 baseline_pressure=47796 candidate_pressure=47796
2026-09-07T20:25:14.042828Z  INFO modelled expanded operator plan finalist=3 modelled_cycles=682237 estimated_cycles=3024229 estimated_exchange_cycles=2458440
2026-09-07T20:25:14.128872Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=57 transfers=1120 maximum_identical_destinations=1
2026-09-07T20:25:14.128905Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=57 initial_horizon=548 selected_horizon=455 endpoint_lower_bound=256 lower_bound_gap=199 selected_kind="matching-waves" neighborhood_improvements=0
2026-09-07T20:25:14.129292Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=57 tile=2 row_words=232 horizon=455
2026-09-07T20:25:14.150143Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=40 transfers=1120 maximum_identical_destinations=1
2026-09-07T20:25:14.150175Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=40 initial_horizon=548 selected_horizon=455 endpoint_lower_bound=256 lower_bound_gap=199 selected_kind="matching-waves" neighborhood_improvements=0
2026-09-07T20:25:14.150763Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=40 tile=2 row_words=232 horizon=455
2026-09-07T20:25:14.271017Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=62 transfers=2080 maximum_identical_destinations=1
2026-09-07T20:25:14.271048Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=62 initial_horizon=554 selected_horizon=554 endpoint_lower_bound=258 lower_bound_gap=296 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.272125Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=62 tile=5 row_words=234 horizon=554
2026-09-07T20:25:14.496516Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=59 transfers=1120 maximum_identical_destinations=1
2026-09-07T20:25:14.496559Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=59 initial_horizon=2299 selected_horizon=2299 endpoint_lower_bound=2240 lower_bound_gap=59 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.497000Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=59 tile=0 row_words=2245 horizon=2299
2026-09-07T20:25:14.587238Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=19 transfers=4416 maximum_identical_destinations=1
2026-09-07T20:25:14.587271Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=19 initial_horizon=1471 selected_horizon=1471 endpoint_lower_bound=512 lower_bound_gap=959 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.589397Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=19 tile=2 row_words=633 horizon=1471
2026-09-07T20:25:14.668167Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=62 transfers=2080 maximum_identical_destinations=1
2026-09-07T20:25:14.668190Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=62 initial_horizon=557 selected_horizon=557 endpoint_lower_bound=258 lower_bound_gap=299 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.668928Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=62 tile=8 row_words=232 horizon=557
2026-09-07T20:25:14.743068Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=9 transfers=4416 maximum_identical_destinations=1
2026-09-07T20:25:14.743107Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=9 initial_horizon=1465 selected_horizon=1465 endpoint_lower_bound=512 lower_bound_gap=953 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.746415Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=9 tile=12 row_words=643 horizon=1465
2026-09-07T20:25:14.748167Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=9 transfers=4416 maximum_identical_destinations=1
2026-09-07T20:25:14.748216Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=9 initial_horizon=1471 selected_horizon=1471 endpoint_lower_bound=512 lower_bound_gap=959 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.749119Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=26 transfers=4416 maximum_identical_destinations=1
2026-09-07T20:25:14.749149Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=26 initial_horizon=1471 selected_horizon=1471 endpoint_lower_bound=512 lower_bound_gap=959 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.751419Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=9 tile=2 row_words=633 horizon=1471
2026-09-07T20:25:14.751785Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=50 transfers=4416 maximum_identical_destinations=1
2026-09-07T20:25:14.751814Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=50 initial_horizon=1471 selected_horizon=1471 endpoint_lower_bound=512 lower_bound_gap=959 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.752360Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=26 tile=2 row_words=633 horizon=1471
2026-09-07T20:25:14.754989Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=50 tile=2 row_words=633 horizon=1471
2026-09-07T20:25:14.776485Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=35 transfers=4416 maximum_identical_destinations=1
2026-09-07T20:25:14.776524Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=35 initial_horizon=1471 selected_horizon=1471 endpoint_lower_bound=512 lower_bound_gap=959 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.779752Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=35 tile=2 row_words=633 horizon=1471
2026-09-07T20:25:14.792960Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=2 transfers=4416 maximum_identical_destinations=1
2026-09-07T20:25:14.792994Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=2 initial_horizon=1465 selected_horizon=1465 endpoint_lower_bound=512 lower_bound_gap=953 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.796279Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=2 tile=12 row_words=643 horizon=1465
2026-09-07T20:25:14.796884Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=35 transfers=4416 maximum_identical_destinations=1
2026-09-07T20:25:14.796913Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=35 initial_horizon=1465 selected_horizon=1465 endpoint_lower_bound=512 lower_bound_gap=953 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.800192Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=35 tile=12 row_words=643 horizon=1465
2026-09-07T20:25:14.805348Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=45 transfers=4416 maximum_identical_destinations=1
2026-09-07T20:25:14.805380Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=45 initial_horizon=1471 selected_horizon=1471 endpoint_lower_bound=512 lower_bound_gap=959 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.808539Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=45 tile=2 row_words=633 horizon=1471
2026-09-07T20:25:14.857812Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=65 transfers=1120 maximum_identical_destinations=1
2026-09-07T20:25:14.857843Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=65 initial_horizon=524 selected_horizon=451 endpoint_lower_bound=256 lower_bound_gap=195 selected_kind="critical-neighborhood" neighborhood_improvements=1
2026-09-07T20:25:14.858430Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=65 tile=14 row_words=224 horizon=451
2026-09-07T20:25:14.860382Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=65 transfers=1120 maximum_identical_destinations=1
2026-09-07T20:25:14.860405Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=65 initial_horizon=548 selected_horizon=455 endpoint_lower_bound=256 lower_bound_gap=199 selected_kind="matching-waves" neighborhood_improvements=0
2026-09-07T20:25:14.860979Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=65 tile=2 row_words=232 horizon=455
2026-09-07T20:25:14.864428Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=14 transfers=4416 maximum_identical_destinations=1
2026-09-07T20:25:14.864464Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=14 initial_horizon=1471 selected_horizon=1471 endpoint_lower_bound=512 lower_bound_gap=959 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.867686Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=14 tile=2 row_words=633 horizon=1471
2026-09-07T20:25:14.872919Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: compared ordinary and paired exchange schedules phase=43 candidates=27 ordinary_horizon=487 paired_horizon=295 use_paired=true
2026-09-07T20:25:14.895068Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=26 transfers=4416 maximum_identical_destinations=1
2026-09-07T20:25:14.895100Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=26 initial_horizon=1465 selected_horizon=1465 endpoint_lower_bound=512 lower_bound_gap=953 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.898514Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=26 tile=12 row_words=643 horizon=1465
2026-09-07T20:25:14.901556Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: compared ordinary and paired exchange schedules phase=48 candidates=27 ordinary_horizon=487 paired_horizon=295 use_paired=true
2026-09-07T20:25:14.905051Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=57 transfers=1120 maximum_identical_destinations=1
2026-09-07T20:25:14.905088Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=57 initial_horizon=524 selected_horizon=451 endpoint_lower_bound=256 lower_bound_gap=195 selected_kind="critical-neighborhood" neighborhood_improvements=1
2026-09-07T20:25:14.906030Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=57 tile=14 row_words=224 horizon=451
2026-09-07T20:25:14.918894Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=40 transfers=1120 maximum_identical_destinations=1
2026-09-07T20:25:14.918920Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=40 initial_horizon=524 selected_horizon=451 endpoint_lower_bound=256 lower_bound_gap=195 selected_kind="critical-neighborhood" neighborhood_improvements=1
2026-09-07T20:25:14.919522Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=40 tile=14 row_words=224 horizon=451
2026-09-07T20:25:14.924434Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=50 transfers=4416 maximum_identical_destinations=1
2026-09-07T20:25:14.924487Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=50 initial_horizon=1465 selected_horizon=1465 endpoint_lower_bound=512 lower_bound_gap=953 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.927740Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=50 tile=12 row_words=643 horizon=1465
2026-09-07T20:25:14.927997Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=14 transfers=4416 maximum_identical_destinations=1
2026-09-07T20:25:14.928028Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=14 initial_horizon=1465 selected_horizon=1465 endpoint_lower_bound=512 lower_bound_gap=953 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.931299Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=14 tile=12 row_words=643 horizon=1465
2026-09-07T20:25:14.955570Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=19 transfers=4416 maximum_identical_destinations=1
2026-09-07T20:25:14.955604Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=19 initial_horizon=1465 selected_horizon=1465 endpoint_lower_bound=512 lower_bound_gap=953 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.958924Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=19 tile=12 row_words=643 horizon=1465
2026-09-07T20:25:14.989183Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=59 transfers=1120 maximum_identical_destinations=1
2026-09-07T20:25:14.989225Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=59 initial_horizon=2299 selected_horizon=2299 endpoint_lower_bound=2240 lower_bound_gap=59 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:14.989681Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=59 tile=0 row_words=2245 horizon=2299
2026-09-07T20:25:15.371046Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=63 transfers=2048 maximum_identical_destinations=1
2026-09-07T20:25:15.371078Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=63 initial_horizon=2197 selected_horizon=2197 endpoint_lower_bound=768 lower_bound_gap=1429 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:15.372841Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=63 tile=1 row_words=774 horizon=2197
2026-09-07T20:25:15.374190Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=63 transfers=2048 maximum_identical_destinations=1
2026-09-07T20:25:15.374240Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=63 initial_horizon=2268 selected_horizon=2268 endpoint_lower_bound=768 lower_bound_gap=1500 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:15.376988Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=63 tile=27 row_words=742 horizon=2268
2026-09-07T20:25:15.564712Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=45 transfers=4416 maximum_identical_destinations=1
2026-09-07T20:25:15.564753Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=45 initial_horizon=1465 selected_horizon=1465 endpoint_lower_bound=512 lower_bound_gap=953 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:15.567960Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=45 tile=12 row_words=643 horizon=1465
2026-09-07T20:25:15.857952Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=31 transfers=8128 maximum_identical_destinations=1
2026-09-07T20:25:15.857995Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=31 initial_horizon=1978 selected_horizon=1978 endpoint_lower_bound=1026 lower_bound_gap=952 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:15.865743Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=31 tile=5 row_words=919 horizon=1978
2026-09-07T20:25:16.313516Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=37 transfers=4482 maximum_identical_destinations=1
2026-09-07T20:25:16.313558Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=37 initial_horizon=4103 selected_horizon=4103 endpoint_lower_bound=2384 lower_bound_gap=1719 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:16.316364Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=37 tile=3 row_words=3094 horizon=4103
2026-09-07T20:25:16.351354Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=5 transfers=4482 maximum_identical_destinations=1
2026-09-07T20:25:16.351390Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=5 initial_horizon=4033 selected_horizon=4033 endpoint_lower_bound=2384 lower_bound_gap=1649 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:16.354079Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=5 tile=3 row_words=2857 horizon=4033
2026-09-07T20:25:16.370768Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=5 transfers=4482 maximum_identical_destinations=1
2026-09-07T20:25:16.370804Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=5 initial_horizon=4001 selected_horizon=4001 endpoint_lower_bound=2384 lower_bound_gap=1617 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:16.373625Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=5 tile=2 row_words=2972 horizon=4001
2026-09-07T20:25:16.415605Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=28 transfers=4482 maximum_identical_destinations=1
2026-09-07T20:25:16.415642Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=28 initial_horizon=4033 selected_horizon=4033 endpoint_lower_bound=2384 lower_bound_gap=1649 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:16.418336Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=28 tile=3 row_words=2857 horizon=4033
2026-09-07T20:25:16.520585Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=31 transfers=8128 maximum_identical_destinations=1
2026-09-07T20:25:16.520621Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=31 initial_horizon=1978 selected_horizon=1978 endpoint_lower_bound=1026 lower_bound_gap=952 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:16.528375Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=31 tile=8 row_words=845 horizon=1978
2026-09-07T20:25:16.538744Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=28 transfers=4482 maximum_identical_destinations=1
2026-09-07T20:25:16.538778Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=28 initial_horizon=4001 selected_horizon=4001 endpoint_lower_bound=2384 lower_bound_gap=1617 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:16.541596Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=28 tile=2 row_words=2972 horizon=4001
2026-09-07T20:25:16.895920Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=52 transfers=10206 maximum_identical_destinations=1
2026-09-07T20:25:16.895958Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=52 initial_horizon=3677 selected_horizon=3677 endpoint_lower_bound=576 lower_bound_gap=3101 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:16.904085Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=52 tile=9 row_words=830 horizon=3677
2026-09-07T20:25:17.018183Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=52 transfers=10206 maximum_identical_destinations=1
2026-09-07T20:25:17.018239Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=52 initial_horizon=3385 selected_horizon=3385 endpoint_lower_bound=576 lower_bound_gap=2809 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:17.026476Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=52 tile=34 row_words=834 horizon=3385
2026-09-07T20:25:17.063019Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=37 transfers=4482 maximum_identical_destinations=1
2026-09-07T20:25:17.063059Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=37 initial_horizon=3816 selected_horizon=3816 endpoint_lower_bound=2384 lower_bound_gap=1432 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:17.067616Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=37 tile=4 row_words=2924 horizon=3816
2026-09-07T20:25:17.843517Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=21 transfers=13608 maximum_identical_destinations=1
2026-09-07T20:25:17.843561Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=21 initial_horizon=4590 selected_horizon=4590 endpoint_lower_bound=768 lower_bound_gap=3822 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:17.855873Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=21 tile=34 row_words=1124 horizon=4590
2026-09-07T20:25:18.188227Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=21 transfers=13608 maximum_identical_destinations=1
2026-09-07T20:25:18.188267Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=21 initial_horizon=4163 selected_horizon=4163 endpoint_lower_bound=768 lower_bound_gap=3395 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:18.200728Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=21 tile=52 row_words=1111 horizon=4163
2026-09-07T20:25:35.128269Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=32 transfers=8192 maximum_identical_destinations=1
2026-09-07T20:25:35.128314Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=32 initial_horizon=6825 selected_horizon=6825 endpoint_lower_bound=3072 lower_bound_gap=3753 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:35.143786Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=32 tile=44 row_words=3588 horizon=6825
2026-09-07T20:25:35.828290Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=2 transfers=4416 maximum_identical_destinations=1
2026-09-07T20:25:35.828332Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=2 initial_horizon=1471 selected_horizon=1471 endpoint_lower_bound=512 lower_bound_gap=959 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:35.831534Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=2 tile=2 row_words=633 horizon=1471
2026-09-07T20:25:52.528100Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: prepared large physical exchange phase phase=32 transfers=8192 maximum_identical_destinations=1
2026-09-07T20:25:52.528141Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: optimized physical exchange schedule phase=32 initial_horizon=7493 selected_horizon=7493 endpoint_lower_bound=3072 lower_bound_gap=4421 selected_kind="full-duplex" neighborhood_improvements=0
2026-09-07T20:25:52.537779Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: finished large physical exchange phase phase=32 tile=35 row_words=3518 horizon=7493
2026-09-07T20:25:52.545195Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: scheduled operator-plan finalist finalist=1 mapped=false analytical_cycles=3102033 analytical_exchange_cycles=2549796 scheduled_exchange_cycles=153858 refined_cycles=706095
2026-09-07T20:25:52.545727Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: scheduled operator-plan finalist finalist=1 mapped=true analytical_cycles=3102033 analytical_exchange_cycles=2549796 scheduled_exchange_cycles=153478 refined_cycles=705715
2026-09-07T20:25:52.592226Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: selected physically scheduled operator-plan finalist selected=1 mapped=true
2026-09-07T20:25:52.592262Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="select_finalist"}: package build phase finished phase="select_finalist" elapsed_ms=38806 success=true
2026-09-07T20:25:52.592274Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}: lowered graph for package construction logical_shards=10485 exchange_phases=67
2026-09-07T20:25:52.592591Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="compile_runtime"}: package build phase finished phase="compile_runtime" elapsed_ms=0 success=true
2026-09-07T20:25:52.593233Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="plan_kernels"}: package build phase finished phase="plan_kernels" elapsed_ms=0 success=true
2026-09-07T20:25:52.595011Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="compile_kernels"}: compiling kernel source=/srv/home/gc-sdk/ipu-stack/crates/ipu-tests/../../device/flash_attention_online_f16.cpp name="flash_attention_codelet_m1_q1_k4_d72_v72_3df15bf0" target=ipu21
2026-09-07T20:25:52.911270Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/dfafcd8cdd56b51f0bc1af4c43a623510742cf626ca498c7753930f72bca6795/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/dfafcd8cdd56b51f0bc1af4c43a623510742cf626ca498c7753930f72bca6795/kernel.json
2026-09-07T20:25:52.911643Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="compile_kernels"}: compiling kernel source=/srv/home/gc-sdk/ipu-stack/crates/ipu-tests/../../device/worker_call.S name="flash_attention_wrapper_m1_q1_k4_d72_v72_3df15bf0" target=ipu21
2026-09-07T20:25:52.961868Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="compile_kernels"}: kernel artifact created object=/srv/home/.cache/ipu-stack/kernels/3e8203012604d12d5c355017e05d68b8099831be1431605d14a01bba9e4a82cc/kernel.o metadata=/srv/home/.cache/ipu-stack/kernels/3e8203012604d12d5c355017e05d68b8099831be1431605d14a01bba9e4a82cc/kernel.json
2026-09-07T20:25:52.962394Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="compile_kernels"}: package build phase finished phase="compile_kernels" elapsed_ms=369 success=true
2026-09-07T20:25:52.963259Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="link_runtime"}: package build phase finished phase="link_runtime" elapsed_ms=0 success=true
2026-09-07T20:25:53.071374Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="size_tile_code"}: package build phase finished phase="size_tile_code" elapsed_ms=12 success=true
2026-09-07T20:25:53.071415Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}: allocated package support memory linked_end=326028 profile_bytes=808 exchange_table_bytes=84952 host_code_bytes=1948 generated_code_bytes=16804 code_address=493536 standard_ranges=[]
2026-09-07T20:25:53.071430Z  INFO ipu_codegen.package.build{tile_count=64 operations=46}:ipu_codegen.package.phase{phase="place_storage"}: package build phase finished phase="place_storage" elapsed_ms=0 success=false
Error: placement failed: tile 0 has insufficient Ipu21Standard SRAM for 0 bytes

Caused by:
    tile 0 has insufficient Ipu21Standard SRAM for 0 bytes